<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb>
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getGoodsList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getGoodsList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddpage">添加商品</el-button>
        </el-col>
      </el-row>
      <!-- 表格区域 -->
      <el-table :data="goodsList" border stripe>
        <el-table-column type="index" label="序号"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column
          label="商品价格(元)"
          prop="goods_price"
          width="95px"
        ></el-table-column>
        <el-table-column
          label="商品重量"
          prop="goods_weight"
          width="95px"
        ></el-table-column>
        <el-table-column label="创建时间" prop="add_time" width="140px">
          <template slot-scope="scope">
            {{ scope.row.add_time | dateFormat }}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="125px">
          <template slot-scope="scope">
            <el-button
              size="mini"
              type="primary"
              icon="el-icon-edit"
            ></el-button>
            <el-button
              size="mini"
              type="danger"
              icon="el-icon-delete"
              @click="removeById(scope.row.goods_id)"
            ></el-button>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[3, 5, 10, 15]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
        background
      >
      </el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  data() {
    return {
      //查询参数
      queryInfo: {
        query: "",
        pagenum: 1,
        pagesize: 10,
      },
      //保存商品列表信息
      goodsList: [],
      //总数据条数
      total: 0,
    };
  },
  created() {
    this.getGoodsList();
  },
  methods: {
    async getGoodsList() {
      //   根据分页获取对应的商品列表
      const { data: res } = await this.$http.get("goods", {
        params: this.queryInfo,
      });

      if (res.meta.status !== 200) {
        return this.$message.error("获取商品列表失败");
      }
      console.log(res.data);
      // this.$message.success("获取商品列表成功");
      this.goodsList = res.data.goods;
      this.total = res.data.total;
    },
    handleSizeChange(newSize) {
      //当页号发生改变时，更改pagesize，重新请求
      this.queryInfo.pagesize = newSize;
      this.getGoodsList();
    },
    handleCurrentChange(newPage) {
      //当页码发生改变时，更改pagesize，重新请求
      this.queryInfo.pagenum = newPage;
      this.getGoodsList();
    },
    async removeById(goods_id) {
      //根据id删除对应的参数或属性
      //弹窗提示用户是否要删除
      const confirmResult = await this.$confirm(
        "请问是否要删除该商品",
        "删除提示",
        {
          confirmButtonText: "确认删除",
          cancelButtonText: "取消",
          type: "warning",
        }
      ).catch((err) => err);
      //如果用户点击确认，则confirmResult 为'confirm'
      //如果用户点击取消, 则confirmResult获取的就是catch的错误消息'cancel'
      if (confirmResult != "confirm") {
        return this.$message.info("已经取消删除");
      }

      //没有取消就是要删除，发送请求完成删除
      const { data: res } = await this.$http.delete(`goods/${goods_id}`);

      if (res.meta.status !== 200) {
        return this.$message.error("删除商品失败");
      }

      this.$message.success("删除商品成功");
      this.getGoodsList();
    },
    goAddpage(){
      this.$router.push('/goods/add')
    }
  },
};
</script>

<style>
</style>